SS16L RHG Schottky Diode Equivalent & Substitute Parts

Part Overview

The SS16L RHG is a 60V, 1A Schottky rectifier diode manufactured by Taiwan Semiconductor Corporation in a Sub SMA surface mount package (DO-219AB). This component is classified as Active product status with full RoHS3 compliance and REACH unaffected designation. The SS16L RHG serves as a fast recovery diode suitable for low-voltage rectification applications requiring efficient switching characteristics and minimal forward voltage drop.

Identification of equivalent and substitute parts becomes necessary when the primary part number reaches end-of-life status, inventory constraints occur, or design flexibility is required across manufacturing sources while maintaining electrical and mechanical compatibility.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) Maximum	60	V
Current - Average Rectified (Io)	1	A
Voltage - Forward (Vf) Maximum @ If	700 mV @ 1 A	mV @ A
Speed - Fast Recovery	≤ 500ns, > 200mA (Io)	ns
Current - Reverse Leakage @ Vr	400	µA @ 60 V
Technology	Schottky	—
Mounting Type	Surface Mount	—
Package / Case	DO-219AB	—
Operating Temperature - Junction	-55 to 150	°C
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution of the SS16L RHG is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

Voltage - DC Reverse (Vr) Maximum: 60V
Current - Average Rectified (Io): 1A
Package / Case: DO-219AB (Sub SMA)
Technology: Schottky
Mounting Type: Surface Mount

Acceptable Variation Parameters:

Voltage - Forward (Vf) Maximum: Up to 700 mV @ 1A
Current - Reverse Leakage @ Vr: Specification dependent (400 µA baseline for SS16L RHG)
Operating Temperature - Junction: Minimum -55°C to 150°C required
RoHS and REACH compliance status

Parts are grouped into two categories:

Parametric Equivalent: SS16L R3G maintains identical electrical specifications and package configuration. This part is discontinued at DiGi Electronics but remains functionally equivalent.

Similar Manufacturer Parts: SS1FH6-M3/H, SS1FH6HM3/H, and SS2FH6HM3/H are manufactured by Vishay General Semiconductor - Diodes Division. These parts share the same 60V reverse voltage rating and DO-219AB package but differ in current rating (SS2FH6HM3/H at 2A) or leakage characteristics.

Parameter Comparison

Parameter	SS16L RHG (Main)	SS16L R3G (Parametric Equivalent)	SS1FH6-M3/H (Similar)	SS1FH6HM3/H (Similar)	SS2FH6HM3/H (Similar)
Manufacturer	Taiwan Semiconductor	Taiwan Semiconductor	Vishay General Semiconductor	Vishay General Semiconductor	Vishay General Semiconductor
Voltage - DC Reverse (Vr) Max	60 V	60 V	60 V	60 V	60 V
Current - Average Rectified (Io)	1 A	1 A	1 A	1 A	2 A
Voltage - Forward (Vf) Max @ If	700 mV @ 1 A	700 mV @ 1 A	700 mV @ 1 A	700 mV @ 1 A	780 mV @ 2 A
Speed - Fast Recovery	≤ 500ns, > 200mA	≤ 500ns, > 200mA	≤ 500ns, > 200mA	≤ 500ns, > 200mA	≤ 500ns, > 200mA
Current - Reverse Leakage @ Vr	400 µA @ 60 V	400 µA @ 60 V	3 µA @ 60 V	3 µA @ 60 V	3 µA @ 60 V
Package / Case	DO-219AB	DO-219AB	DO-219AB	DO-219AB	DO-219AB
Operating Temperature - Junction	-55 to 150°C	-55 to 150°C	-55 to 175°C	-55 to 175°C	-55 to 175°C
Product Status	Active	Discontinued at DiGi Electronics	Active	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Automotive Grade	—	—	—	AEC-Q101	AEC-Q101

Engineering Selection Recommendations

Direct Replacement (Parametric Equivalent):

SS16L R3G is the parametric equivalent to SS16L RHG, matching all electrical specifications and package configuration. This part is suitable for direct substitution in applications where the 1A current rating and 60V reverse voltage are required. However, SS16L R3G is discontinued at DiGi Electronics, limiting availability for new procurement.

Cross-Manufacturer Substitution (Similar Parts):

SS1FH6-M3/H and SS1FH6HM3/H are functionally equivalent alternatives from Vishay General Semiconductor - Diodes Division. Both maintain the 60V reverse voltage, 1A average rectified current, and DO-219AB package. These parts feature improved reverse leakage characteristics (3 µA versus 400 µA) and extended operating temperature range (-55 to 175°C versus -55 to 150°C). SS1FH6HM3/H carries AEC-Q101 automotive qualification, suitable for automotive applications requiring formal qualification documentation.

SS2FH6HM3/H is a higher current variant rated at 2A average rectified current. This part is suitable only when the application circuit can accommodate the increased current capacity without thermal or electrical stress. The forward voltage specification increases to 780 mV @ 2A, reflecting the higher current rating.

Compliance Considerations:

All substitute parts maintain ROHS3 compliance and REACH unaffected status, matching the environmental and regulatory requirements of the SS16L RHG. Moisture sensitivity level remains at MSL 1 (Unlimited) across all options, eliminating moisture-related handling constraints.

Frequently Asked Questions (FAQ)

Q: Can SS16L R3G be used as a direct replacement for SS16L RHG?

A: Yes. SS16L R3G is a parametric equivalent with identical electrical specifications (60V, 1A, 700 mV forward voltage) and package configuration (DO-219AB). However, SS16L R3G is discontinued at DiGi Electronics, making it unavailable for new designs or procurement.

Q: What is the primary difference between SS1FH6-M3/H and SS1FH6HM3/H?

A: Both parts share identical electrical ratings (60V, 1A, 700 mV forward voltage) and package type (DO-219AB). The distinction is that SS1FH6HM3/H carries AEC-Q101 automotive qualification and is designated as automotive grade, while SS1FH6-M3/H is a standard industrial part. Selection depends on whether automotive qualification is required for the application.

Q: Why does SS2FH6HM3/H have different forward voltage specifications?

A: SS2FH6HM3/H is rated for 2A average rectified current, compared to 1A for the SS16L RHG. The forward voltage specification of 780 mV @ 2A reflects the higher current rating. This part is suitable only when the application circuit requires or can accommodate 2A current capacity.

Q: Are all substitute parts available in the same packaging format?

A: Yes. All substitute parts use the DO-219AB package (Sub SMA surface mount configuration), ensuring mechanical and footprint compatibility with the SS16L RHG. Packaging options vary by supplier (Cut Tape, Digi-Reel, or Tape & Reel), but the physical package remains identical.

Q: What is the significance of the improved reverse leakage in Vishay parts?

A: Vishay parts (SS1FH6-M3/H, SS1FH6HM3/H, SS2FH6HM3/H) specify 3 µA reverse leakage @ 60V, compared to 400 µA for the SS16L RHG. Lower reverse leakage reduces standby current consumption and heat generation in applications with sustained reverse bias conditions. This improvement does not affect forward conduction characteristics.

Q: Can SS16L RHG be substituted in automotive applications?

A: SS16L RHG does not carry automotive qualification. For automotive applications requiring AEC-Q101 certification, use SS1FH6HM3/H or SS2FH6HM3/H, both of which are AEC-Q101 qualified.

Q: What is the impact of the extended operating temperature range in Vishay parts?

A: Vishay parts operate from -55 to 175°C, compared to -55 to 150°C for SS16L RHG. The extended upper temperature limit (175°C versus 150°C) provides additional thermal margin in high-temperature applications. This specification does not affect electrical performance within the SS16L RHG operating range.

Q: Are there any electrical performance differences that would affect circuit operation?

A: All substitute parts maintain the same forward voltage (700 mV @ 1A for 1A-rated parts) and fast recovery speed (≤ 500ns). The primary difference is reverse leakage current, which affects standby power consumption but not switching performance. SS2FH6HM3/H operates at 2A, requiring circuit verification to ensure current capacity is not exceeded.

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